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1055T Vcore goes up on load ?!? (TurboCore disabled) - Page 2

post #11 of 35
Quote:
Originally Posted by Dopamin3 View Post
I've never heard of Super Flower either.

http://www.super-flower.com.tw/index.php
I've had one of there older model PSU's on my old P4 system,Was not to bad.
I can see they have improved there PSU's since the one I had.
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post #12 of 35
So I'm going to "burn" my cpu out? I'm interested to hear whether or not this was directed at me.
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post #13 of 35
Quote:
Originally Posted by Veranor View Post
Do you have a CPU-VDDA setting? Is it set to Auto? Auto should be probably 2.5. What about PLL?
CPU VDDA Voltage, there are three available settings "Auto - 2.56v - 2.70v". What should I try? Or other question, what is this voltage for?

Quote:
Originally Posted by Veranor View Post
Some boards have LLC enabled to a point where you can't edit it. The reason is to ensure that the CPU gets what it needs from a power standpoint under load. Disabling it restricts that from happening, which could cause instability.
LLC is what? You mean something like Cool'N'Quiet oder this enhanced state whatever. I've tryied all options, the voltage gets up and down.
    
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post #14 of 35
The reason your system moves up like that is because your system is basically ensuring that your CPU has enough voltage under load. LLC (or Load Line Calibration) basically performs this function.

Why some people disable it? Because the flucation delta can be high, causing excessively high and unnecessary temps. Hence why you received a response about disabling it.

VDDA is a "manual" way of doing this, so to speak. Increasing the voltage here will definitely increase the manual ensuring that the CPU gets what it needs under load.

2.5 is usually standard with 890s, unless someone objects. I don't know if they work in conjunction with one another yet, as I am still stress testing my system.

Either way, if you can't disable it, you're kinda stuck. Try looking for latest BIOS and such for this case, to see if they add the function to turn it off.

Remember, I'm not an expert, but IMO, LLC and VDDA will account for your slight undervolting if you're OCing. If you turn both of these off, your CPU volts have to be spot on. At least that's what I've found with the Crosshair IV.
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post #15 of 35
I just updated the latest beta bios... Didn't find any LLC Option yet, damn With the newest BIOS, the vcore is perfect stable @idle. @Load it goes up and up... I've set 1,3125v and in FPU Prime95 it goes up to 1,3866v (Says SpeedFan, CPU-Z, Everest...) Thats the problem. When I want to have around 1,32v for 3,5ghz. I should set 1,26-7v in BIOS. That voltage is to low for windows start.
    
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post #16 of 35
As I understand it then, that is the motherboard's way of stabilizing the CPU with extra voltage under full load.

I can't think off of the top of my head whether or not there is anything else you can set. I would ask your MB vendor if LLC is integrated into the board. If so... then that makes sense. If not... then I would investigate whether or not setting that board's VDDA to 2.56 would handle it. I bet that voltage is going up to, so you may want to have some type of utility to check it.
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post #17 of 35
Yes the mainboard adds some voltage up to the set voltage.

This voltage Problem (That the mainboard sets +0.X Volt up to the set voltage in bios) only exists with Thuban (x6) CPU's. With x2-x3-x4 the voltage holds perfect and the difference is maximum 0.00Xv from set voltage.

I'm waiting for reply from ASRock Support. Probably they are quite fast and good. But they had two weeks holidays and now work more and more...
    
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post #18 of 35
Same here, load goes up from 1.504 to 1.52v sometimes during stress testing... but it's not too seriously bad in my case.
post #19 of 35
Quote:
Originally Posted by AMOCO View Post
http://www.super-flower.com.tw/index.php
I've had one of there older model PSU's on my old P4 system,Was not to bad.
I can see they have improved there PSU's since the one I had.
Super Flowers a decent OEM right now. The unit the OP has is the same one as the Kingwin Mach1 1000w a good performer, not great. A little dated now in terms of efficiency and design.
But it'll still hold just fine.

Also; you will not "burn up" your CPU as long as the voltage you keep it under is 1.55v

That's the max voltage by AMD Specs for their 40nm chips.
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post #20 of 35
Quote:
Originally Posted by xd_1771 View Post
Same here, load goes up from 1.504 to 1.52v sometimes during stress testing... but it's not too seriously bad in my case.
I second this. But my temps are okay.
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